Today’s Google doodle pays homage to Robert Koch, the German physician and microbiologist credited with ushering in the Golden Age of bacteriology. Instead of marking his birthday, Google is honoring Koch with a doodle on the anniversary of being named the Nobel Prize winner in Physiology or Medicine in 1905. “By developing many of the basic principles and techniques of modern bacteriology, he inspired a new generation of scientists and microbe-hunters , ushering in a Golden Age of bacteriology,” writes the Google doodle team on the Google Doodle blog, “During this Golden Age, scientists discovered the microorganisms responsible for causing twenty-one different diseases.” Designed by doodler Sophie Diao , the doodle leads to a search for “Robert Koch.” The imagery highlights the potato slices Koch used to isolate bacterial cells during his research, as well as Koch’s image...